Lantern slide folder



I 1942- J. E. GRANT ,2 7, 6

"- LANTERN suns FOLDER Filed llarch 14, 1941 v 7 INVENTOR.

Joseph E. Gran? Patented Mar. 31, 1942 UNITED STATES PATENT OFFICELANTERN SLIDE FOLDER Joseph E. Grant, Beverly Hills, Calif.

Application March 14, 1941, Serial No. 383,269

' 4 Claims.

This invention relates to lantern slide folders.

The general object of the invention is to provide an improved lanternslide folder by means of which lantern slides or other transparenciesmay be readily handled.

A further object of the invention is to provide a lantern slide folderincluding a novel hinge member.

A further object of the invention is to provide a novel apparatus formaking a lantern slide folder.

Other objects and advantages of my invention will be apparent from thefollowing description taken in connection with the accompanying drawingwherein:

Fig. 1 is a perspective view of a folder embodying the features of myinvention;

Fig. 2 is a fragmentary section taken on line 2-2 Fig. 1;

Fig. 3 is a perspective view showing the apparatus and method ofassembly;

Fig. 4 is a top plan view of a model apparatus;

Fig. 5 is a section taken on line 55, Fig. 4;

Fig. 6 is a side elevation of the device shown in Fig. 4;

Fig. 7 is an end view of the device'shown in Fig. 4; and

Fig. 8 is a section taken on the line 88 of Fi 4.

Referring to the drawing by reference character, I have shown myinvention as embodied in a lantern slide folder which is indicatedgenerally at [0. As shown, the folder consists of a plurality of lanternslide holders ll although the members ll may be of the character tosupport transparencies or other material differing from lantern slides.

Each folder includes a front panel l2 and a rear panel I3 with thepanels aligned and with the panels having aligned apertures l4 therein.

The panels l2 and [3 are suitably secured together by glue disposedbetween their marginal edges and they support a lantern slide memberwhich might be a color film l5 by engagement with the edges thereof.

The holders II are secured together in hinged relation by an upperadhesive strip or tape I6 and a lower adhesive strip or tape ll. Thesestrips l6 and I1 engage the front and rear faces of the holders and alsoengage the top and bottom edges thereof.

The holders are arranged with spaces 18 therebetween and the strips I6and H are folded, as shown in Fig. 2, to extend into the spaces l8 untilthe inner surfaces IQ of the strip engage as shown in Fig. 2 and thusform hinges permitting the folder to be manipulated.

In order to manufacture the folder economically and accurately I providean apparatus indicated at 20, Fig. 3, which includes a base 2| having anupwardly extending portion 22 thereon. Portion 22 includes alongitudinal extending slot 23 which is of uniform depth throughout andwhich is of a width to receive the holders II.

In operation the holders are arranged in the slot 23 and a cord 24 isthreaded about the holders as shown in Fig. 3 to properly space theholders. The upper tape 16 is thus secured in place, and the assemblyincluding the holders and the tape 16 and with the cord 24 still inplace is then removed from the slot 23 and placed back in the slot withthe taped portion disposed in the slot. The tape I1 is then secured tothe exposed edges to complete the folder and thereafter the folder isremoved from the slot 23 and the string 24 withdrawn.

In Figs. 4 to 8 inclusive I show a modification of my folder makingapparatus which is indicated generally at 30. As shown the apparatusincludes a base 3| which at each end includes an upwardly projectingportions 32 having oppositely projecting flanges 33. The flanges arespaced to provide shoulders 34. I

The portions 32 are slotted as at 32' to receive a flexible spring-likeslide 35. At the left in Fig. 4, the walls defining the slots 32 havetheir inner faces bevelled as at 3? to engage a rounded end 38 on theslide 35.

Extending upwardly from the base I show a plurality of U-shaped guidemembers 39 which may be soldered in place and which are spaced apart adistance equaled to the width of a lantern slide holder 40 as shown inFig. 4. The upper face of the base 3| is bevelled as at 4|, Fig. 6 sothat when the slide member 35 is pushed forwardly the forward endthereof will be raised thus allowing the lantern slide holders to beinserted.

In operation the lantern slide holders 46 are arranged as shown in Fig.4 and the lower edges 4| of the flanges 33 are engaged on a planesurface. This causes the holders 4!) to be aligned. A strip of tapeindicated in dot-dash line at 42 in Fig. 4 is arranged so that the inneredge thereof engages the shoulder 34 on the member 3|. One face of thestrip is then secured in place upon one side of the holders and thestrip is then wrapped around the holders and secured to the other facethereof thus finishing the taping along one side.

The member 30 is then moved so that the opposite flanges 33 engage aplane surface thus causing the holders to assume the position shown indotted lines in Fig. 4. In this position the untaped sides of theholders are aligned whereupon the second side is taped as previouslydescribed. The slide 35 is then grasped at the knurled end. 35 and iswithdrawn from the guides 39 thus allowing the finished folder to beremoved.

Having thus described my invention, I claim:

1. In a lantern slide folder, a plurality of rectangular lantern slideholders, each holder comprising a pair of panels, the panels of eachpair aligned and spaced apart and a single bindingv strip extendingalong each of the opposed sides of the holders, said binding strips eachengaging the adjacent edges of the holders and extending along the frontand back of the holders, said binding strips also extendinginwardly'between the holders and having their opposed faces inengagement between the holders to provide a hinge.

2. In an apparatus for making a folder of lantern slide holders, amember including a base and an elongated upwardly extending portionhaving a longitudinally extending upwardly open slot of uniform depththerein, said slot being of a width equaling that of a lantern slideholder, said slot being disposed intermediate the Width of the upwardlyextending portion and extending substantially the length thereof.

3. In an apparatus for making a lantern slide folder, an elongated basehaving an upwardly projecting portion at each end, flanges projectingoutwardly from the base at each end thereof, said flanges being of athickness to provide shoulders above and below the flanges, said basehaving a slot in the upper face thereof at each end thereof, said basehaving spaced guide members thereon aligned with said slots and aflexible slide member slidable through said slots and said guidemembers.

4. In an apparatus for making a lantern slide folder, an elongated basehaving an upwardly projecting portion at each end, flanges projectingoutwardly from the base at each end thereof, said flanges being of athickness to provide shoulders above andbelow the flanges, said inwardlyprojecting portions each having a slot in the upper face thereof, saidbase having spaced U-shaped members thereon aligned with said slots, anda flexible slide member slidable through said slots and under saidU-shaped members, the walls defining said slots at one end of the bodybeing beveled and said slide at its forward end being rounded to engagethe beveled parts, said base adjacent said beveled portions having abeveled upwardly directed surface engageable by said slide.

JOSEPH E. GRANT.

